Smoke out exhaust on startup

One reason for white smoke is very common and completely harmless. This is because the two stroke engine have back up oil which normally enters the fuel chamber to lubricate the piston. White smoke can be caused by many reasons.

But if you get white smoke from exhaust at startup , it might be from these reasons: A cracked or warped cylinder head. Stuck PVC Valve If you see blue smoke coming out of the exhaust , all the time, PCV Valve is the frist thing you should check. A diesel engine in good condition should produce no visible smoke from the exhaust , under most operating conditions. A short puff of smoke when an engine is accelerated under load may be acceptable, due to the lag before the turbocharger speed and air flow is able to match the volume of diesel injected into the cylinders. If white smoke comes out when the ignition is started there are a few reasons.

The first one is an internal problem which we will discuss further below. Even if your vehicle isn’t flashing any warning lights, the smoke coming from your exhaust is a signal that. When I start my car for the first time every day, I have white smoke come out my exhaust usually for about a minute or two but it runs fine after that. What would cause backfire and exhaust smoke?

Why do some engines give out too much exhaust smoke? How to fix exhaust smoke? What can cause white smoke from exhaust? Typical problems include fuel not being completely burne too much oil or coolant evaporating.

If ignore such problems can result in significant engine damage, and being able to identify the origin of the smoke , as quickly as. Does anyone else experience this? In very cold temperatures, the heated exhaust can freeze into minute fuel droplets when exiting the exhaust and produce a more prolonged emission of white smoke for a very short period of driving time. But if it never happened before and now suddenly you see it then maybe. Check coolant level for.

But excessive white smoke likely means coolant is leaking into the engine combustion chambers. Condensation can turn to vapor, providing what looks like white exhaust. As a car owner you expect something to come from the tailpipe. This is an emissions outlet for your vehicle, and so vapors will exit from there.

It appears grayish-white in color. Seems like every month or so, the puff gets a bit bigger. Any ideas on what this could be?

It can be a gut wrenching feeling to start your vehicle and find smoke spewing out of the exhaust pipe. For most, it leaves them feeling anxious and panicked that they will have to dip into their savings account. Black smoke is burning oil. Blue smoke is usually transmission fluid due to a leaking modulator valve in the older auto transmission.

Answer cracked heads. Mine started misfiring, with new plugs. If there is a problem within the engine that produces smoke, that smoke will exit the engine through the exhaust. A leaking valve cover gasket might produce smoke caused by oil dripping on a hot manifold.

It uses more fuel on the colder days on the initial startup they said. Smoke came out the exhaust. If you just start it and let it warm up to operating temperature before giving it throttle it shouldnt do that. If you see white smoke during startup only, then this is probably because oil leaks pass the valves and mixes with any moisture present in the car’s exhaust. When you park your car under extremely cold conditions, the car becomes too cool, its air shrinks and starts producing moisture.

Then after about seconds to a minute, the white smoke should clear up. If this is the case then you have nothing to worry about. If just at start up this could indicate moisture in the exhaust , this can happen when the engine is turned off and moisture forms in the exhaust through condensation from the air.